4 papers
Chiral symmetry and black hole isospectrality
Colin Weller, Dongjun Li, Pratik Wagle +3
We prove that black-hole isospectrality between linearly independent solutions follows whenever radiative metric and matter perturbations are reconstructed from complex master vari…
Beyond Three Terms: Continued Fractions for Rotating Black Holes in Modified Gravity
Georgios Karikos, Jayana A. Saes, Pratik Wagle +1
Black-hole ringdown offers a clean probe of strong gravity, but one of its most accurate tools--Leaver's continued-fraction method--requires a three-term recurrence relation. Beyon…
Modified Teukolsky formalism: Null testing and numerical benchmarking
Fawzi Aly, Mahmoud A. Mansour, Luis Lehner +3
Next-generation gravitational-wave detectors will make black-hole ringdown an increasingly sensitive probe of small departures from General Relativity in the strong-field regime. T…
Perturbations of spinning black holes in dynamical Chern-Simons gravity: Slow rotation quasinormal modes
Dongjun Li, Pratik Wagle, Yanbei Chen +1
Gravitational waves offer new ways to test general relativity (GR) in the strong-field regime, including tests involving the ringdown phase of binary black hole mergers, characteri…